class Employee():
    age = 0
    def __init__(self):
        age = 0
    def sayHello(self):
        print("Hello")
    def work(self):
        print("work")

class CEO(Employee):
    grade="top"
    def __init__(self):
        grade = "top"
    def sayHello(self):
        Employee.sayHello(self)
C1 = CEO()
C1.sayHello()
